About this role
The Role
We are seeking a Senior Backend Engineer to partner closely with our App SDK team, focusing on backend systems that enable server-driven UX and client configuration at scale. This role sits at the intersection of backend engineering, mobile platforms, and product experience, helping us ship flexible, dynamic experiences across multiple client applications.
You will design and build backend services that power SDKs, enable experimentation, and allow product teams to evolve app experiences without requiring frequent client releases.
What You'll Do
- Design, develop, test, document, and deploy backend services that support mobile and app SDKs
- Build systems that enable server-driven UX, feature configuration, and dynamic content delivery
- Partner closely with SDK, mobile, and frontend teams to define API contracts and data models that scale across platforms
- Translate product and UX requirements into backend-driven configurations and workflows
- Lead the technical development of new capabilities from requirements through production rollout
- Contribute to architecture decisions around versioning, backward compatibility, and client resilience
- Help define engineering best practices for API design, schema evolution, and SDK support
- Participate in on-call rotations and help troubleshoot production issues impacting client applications
- Improve observability, testability, and operational metrics for SDK-facing services
- Participate in code reviews, design discussions, and team planning
- Mentor engineers and help grow backend expertise around SDK and server-driven design patterns
- Be open to occasional travel to Fanatics offices, conferences, and team events
What We're Looking For
- 3+ years of experience building scalable backend services in production environments
- Strong experience with Go (Golang) as a primary development language
- Experience designing APIs consumed by mobile apps, web clients, or SDKs
- Familiarity with server-driven UX, remote configuration, feature flags, or experimentation systems (strong plus)
- Experience working closely with mobile or client platform teams (iOS, Android, Web, or SDKs)
- Strong understanding of API versioning, backward compatibility, and client safety
- Agile/SCRUM experience and comfort working in fast-moving environments
- Excellent communication skills and ability to collaborate across product, design, and engineering teams
If you bring backend strength and interest in SDKs or server-driven experiences — even without deep prior exposure — we'd still love to hear from you.
The salary range for this position is $152,000 to $200,000, which represents base pay only and does not include short-term or long-term incentive compensation. When determining base pay, as part of a final compensation package, we consider several factors such as location, experience, qualifications, and training. Remote employees may also be eligible for a home office setup stipend.
Other facts
About Fanatics
The Topps Company, Inc. is the iconic, preeminent leader in physical and digital collectibles. Acquired by Fanatics Collectibles in January 2022, Topps is the company's cornerstone licensed trading card brand.
Founded in 1938, The Topps Company started in confections with "Topps Gum" (later introducing Bazooka Bubble Gum) and released its first trading card set in 1950. Today, the company produces trading cards and collectibles, custom cards, memorabilia, sticker album collections and more related to iconic and pop culture brands such as Major League Baseball, Major League Soccer, Star Wars, Bundesliga, UEFA Champions League, World Wrestling Entertainment and Garbage Pail Kids. Fanatics Collectibles has also secured long-term, exclusive rights to design, manufacture and distribute trading cards for several additional sports properties, including NBA, NBPA and NFLPA, in the coming years.
Topps’ Digital Apps division produces, develops and operates mobile applications that give you access to an exclusive digital card collection at your fingertips that are sold via the Apple and Google app stores under the brand names BUNT, KICK, NHL SKATE, Star Wars Card Trader, The Walking Dead Universe Collect, WWE SLAM, Marvel Collect! and Disney Collect! https://play.toppsapps.com/.
Headquartered in New York City, Topps maintains offices in several countries including the United Kingdom, Germany, Italy, India and Brazil.
What you'll do
- Design and build backend services that support mobile and app SDKs, enabling server-driven UX and dynamic content delivery. Lead the technical development of new capabilities and contribute to architecture decisions.
Ready to join Fanatics?
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